In Croatia, Dudak families are Croats (from Ozalj ). In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and Ozalj. In Soldatići in Ozalj every sixth inhabitant had the family name Dudak.
Prevalence
About 20 people with faimily name Dudak live in Croatia today, in 7 households. There were 50 of them in the middle of the past century, and their number decreased significantly. They are located in only four naselja i to in Zagreb (15), Ozalj (<5), Soldatici (<5), and in Metkovic (<5).